-
p.
11B-0-
発行日: 2017年
公開日: 2020/01/23
会議録・要旨集
オープンアクセス
-
伊藤 敦郎, 松井 健太郎, 小野 一穂, 服部 永雄, 末永 健明, 岩内 謙一
p.
11B-1-
発行日: 2017年
公開日: 2020/01/23
会議録・要旨集
オープンアクセス
We are researching binaural reproduction over line array loudspeakers as one of the alternative ways of 22.2
multichannel sound reproduction in the home. We developed a binaural reproduction processor and a pair of line array
loudspeakers. The binaural reproduction processor transforms audio signals of 8K Super Hi-Vision (8K) programs to binaural
signals in real time. The pair of line array loudspeakers, nine loudspeaker units are contained in each housing, are set immediately
above and below the TV screen. The upper line array loudspeaker reproduces binaural signals of surround channels in the top
layer of 22.2 multichannel sound and the lower one reproduces that of the middle layer’s.
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高木 基希, 島田 裕, 谷口 行信
p.
11B-2-
発行日: 2017年
公開日: 2020/01/23
会議録・要旨集
オープンアクセス
Most of the latest supervised methods of person re-identification (PRID) cannot be used for the situations in which
the sufficient amount of training data is not available. In this study, we propose a completely unsupervised method of PRID
using partial correlation coefficient, and verify its effectiveness by some experiments.
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Luis R. MARVAL-PEREZ, 伊藤 康一, 青木 孝文
p.
11B-3-
発行日: 2017年
公開日: 2020/01/23
会議録・要旨集
オープンアクセス
Person authentication using periocular images has a great potential for recognizing pedestrians in surveillance
applications. This paper proposes a periocular recognition algorithm using phase-based correspondence matching with texture
enhancement. Texture enhancement of periocular images can significantly improve recognition performance of periocular
recognition. Through experiments using a public database, we demonstrate the effectiveness of the proposed algorithm
compared with conventional algorithms.
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堀内 俊治, 新井田 統
p.
11B-4-
発行日: 2017年
公開日: 2020/01/23
会議録・要旨集
オープンアクセス
This paper presents a sound field expansion method for the interactive viewing of panoramic videos based on a
spectral modification between multiple channels, and we developed a panoramic video player for smartphones with the
stereophonic sound changing synchrony with the range of views.
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p.
11C-0-
発行日: 2017年
公開日: 2020/01/23
会議録・要旨集
オープンアクセス
-
佐藤 明彦, 朝倉 慎悟, 蔀 拓也, 白井 規之, 齋藤 進, 岡野 正寛, 土田 健一
p.
11C-1-
発行日: 2017年
公開日: 2020/01/23
会議録・要旨集
オープンアクセス
NHK has been conducting research on advanced terrestrial transmission system combined dual-polarized
MIMO and high-order-modulation OFDM, in order to transmit large volume contents such as 8K Super Hi-Vision. This
paper reports the required field strength measured by field experiments in Hitoyoshi area, during 2013-2017.
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白井 規之, 佐藤 明彦, 朝倉 慎悟, 竹内 知明, 中村 円香, 村山 研一, 岡野 正寛, 井口 和久, 三須 俊枝, 松尾 康孝, ...
p.
11C-2-
発行日: 2017年
公開日: 2020/01/23
会議録・要旨集
オープンアクセス
Japan Broadcasting Corporation (NHK) has been researching terrestrial transmission for 8K Super Hi-Vision
(8K SHV). In the actual SFN environment, we succeeded in carrying 8K SHV signals by using an advanced SFN technology
and an 8K HEVC encoder/decoder.
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佐藤 明彦, 蔀 拓也, 白井 規之, 岡野 正寛, 村山 研一, 中原 俊二
p.
11C-3-
発行日: 2017年
公開日: 2020/01/23
会議録・要旨集
オープンアクセス
Wideband transmission system using FEC with lower code rate and successive interference canceler
technology can improve robustness against co-channel interference so that it would be expected to improve a frequency
efficiency of utilization. This paper reports possibilities and problems in case of adopting wideband system to broadcast
model in japan.
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田口 周平, 遠藤 大礎, 竹内 真也, 藤澤 和也, 加井 謙二郎
p.
11C-4-
発行日: 2017年
公開日: 2020/01/23
会議録・要旨集
オープンアクセス
We have proposed
the
Media
-
Unifying Platform
that
enable
s
vi
e
wers
to receive content in
an
appropriate
delivery medi
um
according to
d
evice function
s
and
viewers'
situation
.
Th
e
paper describes the method
to
generate
content link
and
the
descriptive
method
.
And we report the result of
implementation experiment
for verifying the method
.
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p.
12A-0-
発行日: 2017年
公開日: 2020/01/23
会議録・要旨集
オープンアクセス
-
石井 紀彦, 片野 祐太郎, 室井 哲彦, 木下 延博
p.
12A-1-
発行日: 2017年
公開日: 2020/01/23
会議録・要旨集
オープンアクセス
Bit selection method in 5:9 modulation code of holographic data storage was considered. By increasing the correlation between the code map of 5-bit and 9-bit, both error rate and iteration characteristics were improved when using low density parity check code error correction.
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片野 祐太郎, 室井 哲彦, 木下 延博, 石井 紀彦
p.
12A-2-
発行日: 2017年
公開日: 2020/01/23
会議録・要旨集
オープンアクセス
We designed an optical roll-off filter which cuts the high frequency components of the data page with suppression of
the interpixel interference. We experimentally showed that this filter could increase the SNR of the reproduced data comparing
with the use of conventional rectangle spatial low-pass filter.
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川那 真弓, 奥田 光伸, 宮本 泰敬, 石井 紀彦
p.
12A-3-
発行日: 2017年
公開日: 2020/01/23
会議録・要旨集
オープンアクセス
A current-driven domain wall(DW) motion in magnetic nanowire has been utilized in MRAM. In order to reduce
the driving current of DW, we estimated the DW velocity dependence of the applied magnetic field direction from a simulation.
Our analyses indicate that in-plane field is effective for fast DW driving.
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p.
12B-0-
発行日: 2017年
公開日: 2020/01/23
会議録・要旨集
オープンアクセス
-
齊藤 隆弘, 小松 隆
p.
12B-1-
発行日: 2017年
公開日: 2020/01/23
会議録・要旨集
オープンアクセス
This paper takes up 2-component mixture spherically-symmetric Gaussian distribution model with signal’s degradation and
sparsity, for the statistical modeling of DFT coefficients of video signals. To abstract the essence from these massive modelling results,
clustering in the model space is indispensable. This paper discusses the centroid computation in the model space, requisite for the clustering.
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小松 隆, 齊藤 隆弘
p.
12B-2-
発行日: 2017年
公開日: 2020/01/23
会議録・要旨集
オープンアクセス
This paper take up the estimation of probability distribution model parameter for the mean separation type 3D Short-Time
DFT coefficients. This paper also shows the simulation results which estimation the model parameters for the noisy moving images.
Simulation results shows that the model parameter estimation is possible to some extent.
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田中 潮, 原 健二, 浦浜 喜一, 井上 光平
p.
12B-3-
発行日: 2017年
公開日: 2020/01/23
会議録・要旨集
オープンアクセス
In late years, anyone comes to be able to take photographs easily. However, it is difficult to take photographs with
good composition like what professional photographers take. In this work, we propose a novel method for generating a set of
images with optimized composition from an omnidirectional panoramic image.
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岡崎 大暉, 原 健二, 井上 光平, 浦浜 喜一
p.
12B-4-
発行日: 2017年
公開日: 2020/01/23
会議録・要旨集
オープンアクセス
We propose an extension of existing saliency map generation methods to deal with fisheye images. It makes use
of an overset grid consisting of two latitude-longitude grids.
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p.
12C-0-
発行日: 2017年
公開日: 2020/01/23
会議録・要旨集
オープンアクセス
-
小川 展夢, 山村 千草, 澤田 枝里香, 近藤 真之, 藤沢 寛
p.
12C-1-
発行日: 2017年
公開日: 2020/01/23
会議録・要旨集
オープンアクセス
Broadcasters create diverse TV programs. We have considered a system to create encounters with valuable
information by providing data related to the program redesigned in appropriate with user's daily behavio
r using smartphone
and IoT devices. In this study, we developed a prototype service for automobile users.
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大亦 寿之, 池尾 誠哉, 藤沢 寛, 上原 道宏
p.
12C-2-
発行日: 2017年
公開日: 2020/01/23
会議録・要旨集
オープンアクセス
We surveyed actual usage of online video services on TV and smartphone by web-based questionnaire for a
thousand people to understand needs of cast functionality. In the result, the cast functionality is not popular as it is now,
whereas we concluded that there is higher potential needs especially in users of online video services on smartphone.
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黒住 正顕, 田中 壮, 西村 敏, 山本 正男
p.
12C-3-
発行日: 2017年
公開日: 2020/01/23
会議録・要旨集
オープンアクセス
Our technology allows encoders on the distributor side to change transmission rates precisely
according to the reception situation. This can reduce sudden variations in the reproduced image quality.
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小泉 雄貴, 鈴木 陽一, 小島 政明, 筋誡 久, 田中 祥次
p.
12C-4-
発行日: 2017年
公開日: 2020/01/23
会議録・要旨集
オープンアクセス
We are researching 64APSK coded modulation for the purpose of expanding the transmission capacity for
satellite transmission. In the conventional 64APSK coded modulation design based on channel capacity, the influence by
non-linear transmission path was not considered. In this report, we describe the design method considering non-linear
distortion and equalization performance and show that better transmission performance than the conventional one can be
achieved with the proposed method.
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p.
13B-0-
発行日: 2017年
公開日: 2020/01/23
会議録・要旨集
オープンアクセス
-
北村 憲吾, 村木 祐太, 西尾 孝治, 小堀 研一
p.
13B-1-
発行日: 2017年
公開日: 2020/01/23
会議録・要旨集
オープンアクセス
Seam carving is one of the techniques to resize the image while keeping the impression. In this paper, we
propose a method of Seam Carving for complex background video image. We utilize a method of object detector “Binarized
Normed Gradients for Objectness” in order to extract the object area in the videos.
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山内 晶洋, 石川 知一, 亀田 裕介, 松田 一朗, 伊東 晋
p.
13B-2-
発行日: 2017年
公開日: 2020/01/23
会議録・要旨集
オープンアクセス
Optical flow is estimated by imposing invariant conditions of brightness and its gradient. However,
it is difficult to adjust the weights of these conditions due to the convenience of numerical calculation. In this
paper, we consider the adjustment of the weights based on the estimation method that guarantees numerical
stability.
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河原 純也, 村木 祐太, 西尾 孝治, 小堀 研一
p.
13B-3-
発行日: 2017年
公開日: 2020/01/23
会議録・要旨集
オープンアクセス
Automatic crack detection from concrete surface image has been put to practical use. However, Increasing
the resolution of the image requires high processing costs. In this paper , we propose a method of concrete crack
detection for high-resolution image. We reduce processing costs by detect ion crack region using hessian matrix.
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敷田 麻依, 井上 光平, 原 健二, 浦浜 喜一
p.
13B-4-
発行日: 2017年
公開日: 2020/01/23
会議録・要旨集
オープンアクセス
We propose a method for estimating reflectance spectra from tristimulus values observed under a number of
illuminations. We formulate the estimation problem as a constrained Eucliean norm minimization, and show the analytic
solution. Experimental results show that the proposed method improves the accuracy of the estimated reflectance spectra
compared with the previous method.
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宮尾 恵, 島田 裕, 谷口 行信
p.
13B-5-
発行日: 2017年
公開日: 2020/01/23
会議録・要旨集
オープンアクセス
In this research, we propose the color-correction method that transforms from images including near-infrared light to normal images without infrared light. Because colors of clothes remarkably change in images including infrared light, we classify the image into the area and other area, and correct colors in these areas separately.
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p.
13C-0-
発行日: 2017年
公開日: 2020/01/23
会議録・要旨集
オープンアクセス
-
布施 卓哉, 大坪 弘明, 中村 聡, 伊丹 誠
p.
13C-1-
発行日: 2017年
公開日: 2020/01/23
会議録・要旨集
オープンアクセス
In the next-generation DTTB, 4096QAM is used to improve the transmission capacity. In the detection, the high
accuracy of channel estimation is required. In this paper, the reception characteristics using channel estimation scheme of
amplitude and delay time are evaluated. As the result, it is possible to adapt the channel estimation scheme in the next-generation
DTTB.
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高橋 賢
p.
13C-2-
発行日: 2017年
公開日: 2020/01/23
会議録・要旨集
オープンアクセス
This report proposes a method of reducing the power consumption of dedicated emergency wake-up receiver for ISDB-T broadcasting
signals. Both the misdetection and false alarm probabilities increase as decreasing the reception power, then the receiver tends to wrong
results. The proposal reduces the power consumption by determining these probabilities.
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小池 中, 大山 悟
p.
13C-3-
発行日: 2017年
公開日: 2020/01/23
会議録・要旨集
オープンアクセス
In order to operate the hybrid cast in practice, we examined the mechanism to seamlessly switch between 2K and 4K.
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小野 浩一
p.
13C-4-
発行日: 2017年
公開日: 2020/01/23
会議録・要旨集
オープンアクセス
This practice for 4K live transmission provides “Easy, High quality, and Cost performance” and 4K broadcasting in ISDB-T will result in affordable and pragmatic 4K in terrestrial braodcast
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中嶋 淳一, 長谷川 馨亮, 野口 賢一, 森住 俊美, 兼清 知之
p.
13C-5-
発行日: 2017年
公開日: 2020/01/23
会議録・要旨集
オープンアクセス
We have developed MPEG
-
4 ALS
hardware
encoder which support
s
high
-
resolution audio streams.
By
implementing
only
encoding tools
available in MPEG
-
4 ALS Simple Profile and optimizing
DSP
(Digital Signal Processor)
program
s,
we achieved
MPEG
-
4 ALS
hardware
encod
er
with real
-
time processing for high
-
resolution audio streams.
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p.
13D-0-
発行日: 2017年
公開日: 2020/01/23
会議録・要旨集
オープンアクセス
-
黒川 恵輔, 鹿喰 善明
p.
13D-1-
発行日: 2017年
公開日: 2020/01/23
会議録・要旨集
オープンアクセス
I
t is important
for runners to know the
proper
running
form
.
However,
inexperienced runners
don’t know
w
here the key parts
in runner’s form are
.
In this study, we prop
ose a system to analyze the
running for
m automatically, focusing
on
the position of
joints in the
body
by u
sing image processing
.
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横澤 真介, 高橋 正樹, 三ッ峰 秀樹, 三科 智之
p.
13D-2-
発行日: 2017年
公開日: 2020/01/23
会議録・要旨集
オープンアクセス
We developed the head pose estimation system for football players. Its purpose is to obtain useful metadata for
program production in broadcasters. In this paper, prototyping and program production application of the system are introduced.
From this prototyping, a series of production procedure on the system is confirmed.
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横井 真也, 浅見 莉絵子, 石川 孝明, 渡辺 裕
p.
13D-3-
発行日: 2017年
公開日: 2020/01/23
会議録・要旨集
オープンアクセス
Dominant
region using
V
oronoi diagram
is
a
method for analysis of soccer
. In this research
,
we
propose
a
method for expanding 2D
-
dominan
t
region into 3D
-
dominant region. Furthermore, we
obtain
success probability of pass
by
using 3D
-
d
o
minant region.
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加藤 君丸, 渡辺 裕
p.
13D-4-
発行日: 2017年
公開日: 2020/01/23
会議録・要旨集
オープンアクセス
近年,歩きながらスマートフォン(スマホ)の操作を行う歩きスマホが問題となっている.カメラ映
像による歩きスマホ認識は,交通における安全支援に有効である
.著者
は,画像から人物
の姿勢を推定する
Convolutional Pose Machines(CPMs)
を用いた静止画による歩きスマホ認識手法を提案してきた.
従来は,
SVM
に入
力する特徴ベクトルとして,人物の部位座標を用いていた.本稿では,特徴ベクトルに関節角度情報を用いる手法
を提案する.
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p.
14B-0-
発行日: 2017年
公開日: 2020/01/23
会議録・要旨集
オープンアクセス
-
佐々木 知穂, 木許 雅則, 高橋 智博, 古川 利博
p.
14B-1-
発行日: 2017年
公開日: 2020/01/23
会議録・要旨集
オープンアクセス
In this report, depth of field processing of existing images is performed using depth images. We propose an image processing
method that automatically generates depth images and performs processing based on the depth of field on software, so that images are easily
generated without requiring special equipment.
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合志 清一
p.
14B-2-
発行日: 2017年
公開日: 2020/01/23
会議録・要旨集
オープンアクセス
Super resolution (SR) is a technique to create a high resolution image from low resolution images. Enhancer is, a
conventional image quality improving method, which uses a straight forward one path signal processing. In contrast most of SR
techniques need iterations to improve images. Super resolution image reconstruction (SRR) and learning based super resolution
(LBSR) are typical SR methods and require the iterations to create high resolution images. Similar technologies have been
discussed in astronomy. Researches have been trying to decrease the out of focus blur in astrophotography by blind deconvolution
(BD). Although BD is not well known among broadcasting engineers, BD has been used in astrophotography to decrease the out
of focus blur for more than 40 years. BD creates high resolution image by a completely different algorithm from SRR and LBSR.
In this report BD merits against SRR and LBSR are discussed.
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土屋 敦彦, 杉村 大輔, 浜本 隆之
p.
14B-3-
発行日: 2017年
公開日: 2020/01/23
会議録・要旨集
オープンアクセス
We propose a method for depth super-resolution using spatio-temporal correlation of RGB-D videos. The use of spatio-temporal correlations of RGB-D video allows us to suppress false artifacts caused by the color image in synthesizing super-resolved depth images. Our experiments demonstrate the effectiveness of our method.
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福井 健太, 児玉 和也, 浜本 隆之
p.
14B-4-
発行日: 2017年
公開日: 2020/01/23
会議録・要旨集
オープンアクセス
We propose a novel method of high-quality view interpolation without disclosing entire 3D information like DIBR
based on prediction using stereo matching. In this paper, by effectively embedding disparity information only on unpredictable
regions in multi-view images as frequency components, our method maintains compatibility with applications using no 3D
information.
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洞山 勇介, 小池 淳, 和田 直哉
p.
14B-5-
発行日: 2017年
公開日: 2020/01/23
会議録・要旨集
オープンアクセス
P
roposed a more accurate seam carving by combining graph cut and Laplacian fil
ter with
seam carving
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Felix Martin ECKERT, 米原 明聡, 雨車 和憲, 半谷 精一郎
p.
14B-6-
発行日: 2017年
公開日: 2020/01/23
会議録・要旨集
オープンアクセス
The biggest objective and subjective loss of quality using the widely spread bicubic algorithm is at the supposed
sharp edges of an image. This study focuses on developing an algorithm to restore the sharpness by using un
-
sharp masking
influenced
by the intensity of edges in each area.
Testing this algorithm on 97
monochrome
standard images results in up to
1dB improvement PSNR in nearly all cases, showing that the quality improved objectively. Subjective testing results favoured
all the filtered i
mage compared to the bicubic picture.
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p.
14C-0-
発行日: 2017年
公開日: 2020/01/23
会議録・要旨集
オープンアクセス
-
青木 秀一, 蔀 拓也, 竹内 知明
p.
14C-1-
発行日: 2017年
公開日: 2020/01/23
会議録・要旨集
オープンアクセス
This article presents our proposed multiplexing scheme for IP packets in next-generation terrestrial broadcasting system, which is now under development in Japan. It also shows our designed modulator interface from broadcasting station to SFN of transmitters that supports the IP multiplexing scheme. The functionalities of multiplexing IP packets are confirmed with our implemented equipment.
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